cause i recent read something that said dsi games could have better graphic but develops don't wanna take a chance with it and on ds you can have a rumble pack or more memory for quake 2
...Not really. The dsi is aimed at new players to the ds market, though hardcores like me will always buy it just to experience the other stuff. Also the dsi has built in memory hence why it doesn't need an external cart to use the net browser function (and remember-quake 2 is a homebrew app NOT made by nintendo) Thinking in mind with homebrew and flash cart use before true intentions leads to fail in topics about how good a console is. As for rumble...not many games took advantage of it anyway.
That would never work out. Game developers would need to spend extra money to add more content for dsi owners. But there are DSi enhanced games.